sophomoric meaning in English

二年级的
有二年级学生样的
自信但幼稚浅薄的

Do you really believe that sophomoric argument ?
你当真相信那种幼稚可笑的论点吗？
He read it over before mailing , and was particularly impressed by its sophomoric amateurishness and general worthlessness
快邮送来了包裹，马丁割断包裹绳，出版社赠送的那半打样书便散落到桌上。
There was no career for him in literature . of that she was convinced . he had proved it to - day , with his amateurish and sophomoric productions
文学不是他的事业，对此她深信不疑，向他今天又已用他那些业余半生不熟的作品作了证明。
He read it over before mailing , and was particularly impressed by its sophomoric amateurishness and general worthlessness . but he sent it ; and it was published , to the everlasting regret of the editor
寄出之前他再读了一遍，那剧本的幼稚浅薄和业余味儿给了他特别深的印象，可他仍然寄了出去。